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Table 4 Nitrogen isotope composition of vegetative cuttings, pre-flush and post-flush (‰ ± SE; N = 5 except for roots (N = 2-5) where replicates were combined when root biomass was too low for analysis), for four randomly selected Populus trichocarpa Torr. & Gray genotypes flushed in ddH 2 O containing no exogenous sources of nitrogen for 21 days

From: Quantifying remobilization of pre-existing nitrogen from cuttings to new growth of woody plants using 15N at natural abundance

  Pre-flush cutting Post-flush cutting
Genotype CuttingStem δ15N Bud δ15N CuttingStem δ15N Shoot δ15N Root δ15N
LILD 26-3 2.34 ± 0.17 1.97 ± 0.27 2.11 ± 0.34 2.53 ± 0.13 3.08 ± 0.02
LILD 26-5 1.68 ± 0.16 1.97 ± 0.24 1.63 ± 0.36 1.63 ± 0.06 2.46 ± 0.04
TOBA 23-3 3.35 ± 0.26 2.25 ± 0.18 2.82 ± 0.46 2.88 ± 0.08 3.02 ± 0.06
PHLA 22-1 2.35 ± 0.17 2.28 ± 0.16 2.34 ± 0.37 2.41 ± 0.08 2.20 ± 0.26